CN116435552B - Membrane electrode testing methods and apparatus - Google Patents

Membrane electrode testing methods and apparatus

Info

Publication number
CN116435552B
CN116435552B CN202111654056.5A CN202111654056A CN116435552B CN 116435552 B CN116435552 B CN 116435552B CN 202111654056 A CN202111654056 A CN 202111654056A CN 116435552 B CN116435552 B CN 116435552B
Authority
CN
China
Prior art keywords
membrane electrode
anode
preset
voltage
test
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202111654056.5A
Other languages
Chinese (zh)
Other versions
CN116435552A (en
Inventor
张宁
马洪科
吉田泰树
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Weishi Energy Technology Co Ltd
Original Assignee
Weishi Energy Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Weishi Energy Technology Co Ltd filed Critical Weishi Energy Technology Co Ltd
Priority to CN202111654056.5A priority Critical patent/CN116435552B/en
Publication of CN116435552A publication Critical patent/CN116435552A/en
Application granted granted Critical
Publication of CN116435552B publication Critical patent/CN116435552B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/10—Fuel cells with solid electrolytes
    • H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/003—Environmental or reliability tests
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/385—Arrangements for measuring battery or accumulator variables
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
    • G01R31/392—Determining battery ageing or deterioration, e.g. state of health
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/0438—Pressure; Ambient pressure; Flow
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M8/00—Fuel cells; Manufacture thereof
    • H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
    • H01M8/04298—Processes for controlling fuel cells or fuel cell systems
    • H01M8/04313—Processes for controlling fuel cells or fuel cell systems characterised by the detection or assessment of variables; characterised by the detection or assessment of failure or abnormal function
    • H01M8/04492—Humidity; Ambient humidity; Water content
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fuel Cell (AREA)

Abstract

The embodiment of the invention discloses a method and a device for testing a membrane electrode, which are used for circularly testing a plurality of circles of the membrane electrode, wherein each circle of test comprises a primary anode voltage cycle endurance test and a primary anti-reverse pole test, so that the endurance test of a membrane electrode anode catalytic layer is realized. The anode voltage cycle endurance test is mainly aimed at the influence of the start-stop process of the vehicle on the membrane electrode, so that the membrane electrode test method of the embodiment takes the degradation factors of the anode catalyst caused by the start-stop into consideration. The anti-counter electrode test corresponds to the situation of hydrogen starvation, namely the membrane electrode test method and device of the embodiment, and simultaneously considers the situation of anode catalyst degradation caused by anode counter electrode and start-stop, so that the start-stop and anode counter electrode processes occurring on the anode side can be realized, the service life and durability of the membrane electrode can be rapidly tested, and the test accuracy is improved.

Description

Membrane electrode testing method and device
Technical Field
The invention relates to the technical field of fuel cell membrane electrodes, in particular to a membrane electrode testing method and device.
Background
The membrane electrode in a proton exchange membrane fuel cell (Proton Exchange Membrane Fuel Cell, PEMFC) is the region where the electrochemical reaction of the fuel cell occurs, and is the core component of the overall fuel cell system, and its output performance and durability determine the performance and life of the fuel cell.
The current method for accelerating the service life of the membrane electrode is mainly aimed at a cathode catalyst and a proton exchange membrane, and the method for testing the service life of the anode catalyst degradation caused by anode counter electrode and start and stop is less.
The accelerated life test method for the degradation of the anode catalyst only pays attention to the influence of the anode counter electrode on the membrane electrode, and ignores the damage of the catalyst degradation caused by start and stop to the membrane electrode, so that the test on the durability of the membrane electrode is inaccurate.
Disclosure of Invention
The invention provides a method and a device for testing a membrane electrode, which are used for rapidly testing the service life or the durability of the membrane electrode according to the start-stop and anode counter-electrode processes of an anode side and improving the testing accuracy.
In a first aspect, an embodiment of the present invention provides a method for testing a membrane electrode, including a endurance test for an anode catalytic layer of the membrane electrode, specifically including:
And carrying out a plurality of circles of tests on the membrane electrode cycle until the set end condition is reached, wherein each circle of tests comprises an anode voltage cycle endurance test and an anti-reverse pole test.
Optionally, performing a test on the membrane electrode for a plurality of turns until a set end condition is reached, including:
The anode voltage cycle endurance test is carried out on the membrane electrode, and specifically comprises the following steps:
Introducing nitrogen into the anode side of the fuel cell corresponding to the membrane electrode, introducing hydrogen into the cathode side, applying voltage in a preset voltage range which changes at a preset voltage scanning rate between the anode and the cathode of the fuel cell under the conditions of preset pressure, preset temperature and preset cathode-anode humidity, and ending one-time anode voltage cycle endurance test when the number of voltage scanning turns reaches the preset number of scanning turns;
the method for testing the anti-counter electrode of the membrane electrode specifically comprises the following steps:
Introducing hydrogen to the anode side of the fuel cell corresponding to the membrane electrode, introducing air or oxygen to the cathode side, keeping the preset pressure, the preset temperature and the preset cathode and anode humidity unchanged, switching the load of the fuel cell into a current mode, increasing the current density to the preset current density at the preset current density change rate, switching the hydrogen introduced to the anode side of the fuel cell into nitrogen after the preset current density is kept for a first preset time, and continuously finishing a counter electrode resistance test for a second preset time;
judging whether the test of the membrane electrode reaches a set ending condition, if so, ending the test of the membrane electrode, and if not, returning to the step of carrying out the anode voltage cycle endurance test on the membrane electrode.
Optionally, after the anode voltage cycle endurance test is performed on the membrane electrode, and before the anti-counter electrode test is performed on the membrane electrode, the method further comprises:
and reducing the voltage load of the single fuel cell to 0, keeping the preset pressure, the preset temperature and the preset cathode and anode humidity unchanged, switching the hydrogen introduced into the cathode side into nitrogen, and purging the single fuel cell for a third preset time.
Optionally, after performing the anti-inversion test on the membrane electrode and before judging whether the test on the membrane electrode reaches the set end condition, the method further includes:
And reducing the current load of the single fuel cell to 0, keeping the preset pressure, the preset temperature and the preset cathode and anode humidity unchanged, switching the gas introduced into the cathode side into nitrogen, and purging the single fuel cell for a fourth preset time.
Optionally, the preset pressure is greater than or equal to atmospheric pressure, the preset temperature is greater than or equal to 75 ℃, the preset cathode-anode humidity is 100%, and the preset voltage range is 0.05V-1V.
Optionally, the preset current densities corresponding to the anti-counter electrode test under different test turns are not identical.
Optionally, performing a test on the membrane electrode for a plurality of turns until a set end condition is reached, including:
After the membrane electrode is circularly tested for a set number of turns, performing intermediate performance analysis on the membrane electrode;
and continuing to test the membrane electrode until the set ending condition is reached.
Optionally, before the testing for the membrane electrode cycle for a plurality of turns, the method further comprises:
acquiring a first initial current-voltage polarization curve of the anode side of a single fuel cell corresponding to the membrane electrode and a second initial current-voltage polarization curve of the cathode side of the single fuel cell;
after testing the membrane electrode cycle for a set number of turns, performing an intermediate performance analysis on the membrane electrode, comprising:
after the membrane electrode is circularly tested for a set number of turns, a first intermediate current voltage polarization curve of the anode side and a second intermediate current voltage polarization curve of the cathode side of the fuel cell corresponding to the membrane electrode are obtained;
performing anodic polarization intermediate performance analysis according to the first initial current-voltage polarization curve and the first intermediate current-voltage polarization curve;
and performing cathodic polarization intermediate performance analysis according to the second initial current-voltage polarization curve and the second intermediate current-voltage polarization curve.
Optionally, the method includes the steps of performing a test on the membrane electrode in a cycle for a plurality of turns until a set end condition is reached, and further including:
acquiring a first final current-voltage polarization curve of the anode side of the single fuel cell corresponding to the membrane electrode and a second final current-voltage polarization curve of the cathode side of the single fuel cell;
Performing anodic polarization final performance analysis according to the first initial current-voltage polarization curve and the first final current-voltage polarization curve;
and performing cathode polarization final performance analysis according to the second initial current-voltage polarization curve and the second final current-voltage polarization curve.
Optionally, before the testing for setting a plurality of turns of the membrane electrode cycle, the method further includes:
Acquiring an initial electrochemical active area of an anode and an initial electrochemical active area of a cathode of a single cell of the fuel cell corresponding to the membrane electrode;
After the set number of turns of the membrane electrode cycle is tested, performing an intermediate performance analysis on the membrane electrode, further comprising:
after the membrane electrode is circularly tested for a set number of turns, the middle electrochemical active area of the anode and the initial electrochemical active area of the cathode of the single cell of the fuel cell corresponding to the membrane electrode are obtained;
Intermediate electrochemical analysis is performed based on the anode initial electrochemically active area and the anode intermediate electrochemically active area, and the cathode initial electrochemically active area and the cathode intermediate electrochemically active area.
Optionally, after performing a test for a plurality of turns on the membrane electrode cycle until reaching the set end condition, the method further includes:
Obtaining the final electrochemical active area of the anode and the final electrochemical active area of the cathode of the single cell of the fuel cell corresponding to the membrane electrode;
final electrochemical analysis is performed based on the anode initial electrochemically active area and the anode final electrochemically active area, and the cathode initial electrochemically active area and the cathode final electrochemically active area.
Optionally, the setting the ending condition includes that the number of turns of the membrane electrode for the test reaches a preset number of turns, or the pressure difference between the anode and the cathode of the fuel cell unit cell corresponding to the membrane electrode is smaller than the set voltage.
In a second aspect, an embodiment of the present invention further provides a membrane electrode testing apparatus, which is characterized by including:
and the test module is used for circularly testing the membrane electrode for a plurality of turns until the set end condition is reached, wherein the test for each turn comprises an anode voltage cycle endurance test and an anti-reverse pole test.
According to the method and the device for testing the membrane electrode, provided by the embodiment of the invention, the membrane electrode is circularly tested for a plurality of circles, and each circle of test comprises one anode voltage circulation endurance test and one anti-reverse pole test, so that the endurance test of the anode catalytic layer of the membrane electrode is realized. The process of the anode voltage cycle endurance test is mainly aimed at the influence of the start-stop process of the vehicle on the membrane electrode, so that the membrane electrode test method of the embodiment takes the degradation factors of the anode catalyst caused by start-stop into consideration. The anti-counter electrode test corresponds to the situation of hydrogen starvation, namely the membrane electrode test method and device of the embodiment, and simultaneously considers the situation of anode catalyst degradation caused by anode counter electrode and start-stop, so that the start-stop and anode counter electrode processes occurring on the anode side can be realized, the service life and durability of the membrane electrode can be rapidly tested, and the test accuracy is improved.
Drawings
FIG. 1 is a flow chart of a method for testing a membrane electrode according to an embodiment of the present invention;
FIG. 2 is a flow chart of another method for testing a membrane electrode according to an embodiment of the present invention;
FIG. 3 is a flow chart of another method for testing a membrane electrode according to an embodiment of the present invention;
FIG. 4 is a flow chart of yet another method for testing a membrane electrode according to an embodiment of the present invention;
FIG. 5 is a flow chart of yet another method for testing a membrane electrode according to an embodiment of the present invention;
fig. 6 is a flowchart of another method for testing a membrane electrode according to an embodiment of the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the structures related to the present invention are shown in the drawings.
The embodiment of the invention provides a method for testing a membrane electrode, fig. 1 is a flowchart of the method for testing a membrane electrode provided by the embodiment of the invention, and referring to fig. 1, the method for testing a membrane electrode comprises a durability test for an anode catalytic layer of the membrane electrode, wherein the durability test for the anode catalytic layer of the membrane electrode comprises an anode voltage cycle durability test and an anti-counter electrode test, and the method for testing the membrane electrode specifically comprises the following steps:
And 110, performing a plurality of circles of tests on the membrane electrode cycle until a set end condition is reached, wherein each circle of tests comprises an anode voltage cycle endurance test and an anti-reverse pole test.
During operation, the anode typically undergoes three processes, start-stop, normal operation, and hydrogen starvation, which can cause serious damage to the membrane electrode. When the fuel cell is started, hydrogen is introduced into an anode flow channel containing a large amount of air, and after the cell stops running, the air is diffused into an anode containing residual hydrogen, and an oxyhydrogen interface is formed in the two processes, so that researches show that the oxyhydrogen interface formed by the anode accelerates carbon corrosion of a cathode catalytic layer. Likewise, hydrogen starvation may occur in different modes of operation of the fuel cell vehicle, such as start-up, shut-down, and duty cycle. In addition, hydrogen supply system failure, flooding of the anode flow channels, and incorporation of extraneous matter may also lead to hydrogen shortages. When hydrogen starvation occurs, the anode cannot provide enough electrons and protons, resulting in an increase in voltage, thereby causing water electrolysis and carbon oxidation reactions, which easily cause anode reversal.
In this embodiment, a plurality of turns of test are performed on the membrane electrode cycle, and each turn of test includes a primary anode voltage cycle endurance test and a primary counter electrode resistance test, so as to implement the endurance test on the membrane electrode anode catalytic layer. The anode voltage cycle endurance test is mainly aimed at the influence of the start-stop process of the vehicle on the membrane electrode, so that the membrane electrode test method of the embodiment takes the degradation factors of the anode catalyst caused by the start-stop into consideration. The anti-counter electrode test corresponds to the situation of hydrogen starvation, namely the membrane electrode test method of the embodiment, and simultaneously considers the situation of anode catalyst degradation caused by anode counter electrode and start-stop, so that the start-stop and anode counter electrode processes occurring on the anode side can be realized, the service life and the durability of the membrane electrode can be rapidly tested, and the test accuracy is improved.
Fig. 2 is a flowchart of another method for testing a membrane electrode according to an embodiment of the present invention, referring to fig. 2, optionally, the method for testing a membrane electrode includes:
step 210, performing anode voltage cycle endurance test on the membrane electrode.
The step 210 specifically includes introducing nitrogen gas to the anode side of the fuel cell corresponding to the membrane electrode, introducing hydrogen gas to the cathode side, applying a voltage in a preset voltage range varying at a preset voltage scanning rate between the anode and the cathode of the fuel cell under the conditions of a preset pressure, a preset temperature and a preset cathode-anode humidity, and ending the one-time anode voltage cycle endurance test when the number of voltage scanning turns reaches the preset number of scanning turns.
Specifically, the membrane electrode may be first made into a fuel cell, then nitrogen is introduced into the anode side, hydrogen is introduced into the cathode side, under the conditions of preset pressure, preset temperature and preset cathode-anode humidity, under the condition that the load of the fuel cell is in a voltage mode, voltage in a preset voltage range which changes at a preset voltage scanning rate is applied between the anode and the cathode of the fuel cell, optionally, the preset voltage range is 0.05V-1V, then the voltage applied between the anode and the cathode of the fuel cell may be raised from 0.05V to 1V at the preset voltage scanning rate, then the voltage is continuously lowered from 1V to 0.05V at the preset voltage scanning rate, the voltage is raised from 0.05V to 1V, then the voltage is lowered from 1V to 0.05V, which may be regarded as one voltage scanning turn, and when the voltage scanning turn reaches the preset scanning turn, the one-time anode voltage cycle endurance test is ended. The voltage scan rate may be greater than or equal to 100mV/s, although other values may be set according to practical situations, and the embodiment is not limited herein. The preset number of scanning turns can be set according to the actual test conditions.
In this step, the process of performing the anode voltage cycle endurance test on the membrane electrode may cover the whole process of the fuel cell operation, and thus includes the start-stop process, so that the effect of start-stop on the anode catalytic layer is focused on performing the anode voltage cycle endurance test in this embodiment, so that the test on the membrane electrode is more comprehensive.
Optionally, the preset pressure is greater than or equal to atmospheric pressure, the preset temperature is greater than or equal to 75 ℃, and the preset cathode and anode humidity is 100%. The preset cathode and anode humidity comprises preset cathode humidity and preset anode humidity, wherein the preset cathode and anode humidity is 100%, and the preset cathode humidity is 100% and the preset anode humidity is 100%.
And 220, performing anti-electrode reversal test on the membrane electrode.
The step 220 specifically includes introducing hydrogen to the anode side of the fuel cell corresponding to the membrane electrode, introducing air or oxygen to the cathode side, maintaining the preset pressure, the preset temperature and the preset cathode and anode humidity unchanged, switching the load of the fuel cell to a current mode, increasing the current density to a preset current density at a preset current density change rate, switching the hydrogen introduced to the anode side of the fuel cell to nitrogen after the preset current density is maintained for a first preset time, and completing a counter electrode test for a second preset time.
Specifically, hydrogen is introduced into the anode side of the fuel cell corresponding to the membrane electrode, air or oxygen is introduced into the cathode side, the preset pressure, the preset temperature and the preset cathode and anode humidity are kept unchanged, the load of the fuel cell is switched into a current mode, the current density is increased to the preset current density at the preset current density change rate (wherein the preset current density change rate and the preset current density are related to a test bench for testing, and the specific setting can be performed according to the actual situation, the specific size is not specifically limited here), and the first preset time of the preset current density is kept, so that the fuel cell enters into a working state of normal operation. And then, switching the hydrogen gas introduced into the anode side of the single fuel cell into nitrogen gas, and continuing for a second preset time to form a hydrogen starvation environment so as to realize the test of anode anti-reverse polarity. Optionally, the first preset time is 300 seconds, and the second preset time is 10 minutes.
Step 230, judging whether the test of the membrane electrode reaches the set end condition.
Optionally, the setting the ending condition includes that the number of turns of the membrane electrode for the test reaches a preset number of turns, or the setting the ending condition includes that a pressure difference between an anode and a cathode of the fuel cell unit cell corresponding to the membrane electrode is smaller than a set voltage.
Specifically, the pressure difference between the anode and the cathode is less than the set voltage, which may be-2V, indicating that anode reversal has occurred. However, since the pressure difference between the anode and the cathode is smaller than the set voltage, the membrane electrode may need to be tested for a plurality of circles, and the required test time is long, when the test time is limited, the preset number of circles can be achieved by setting the set ending condition to test the membrane electrode circulation, so that the test time is effectively controlled. For example, when different membrane electrodes are tested at the same time, the membrane electrodes with relatively good durability and the membrane electrodes with relatively poor durability can be obtained by comparing the performances of the membrane electrodes after the different membrane electrodes are tested for the preset number of cycles.
If yes, go to step 240 to end the test of the membrane electrode.
If not, returning to the step of performing the anode voltage cycle endurance test on the membrane electrode, namely returning to the step 210.
In this embodiment, the pressure condition and the temperature condition of the anode voltage cycle endurance test and the anti-counter electrode test are the same, which is favorable for shortening the test time and improving the test efficiency. In other alternative embodiments of the present invention, the pressure conditions and temperature conditions of the anode voltage cycling endurance test and the anti-counter electrode test may also be different, and the present invention is not particularly limited herein.
Fig. 3 is a flowchart of another method for testing a membrane electrode according to an embodiment of the present invention, and referring to fig. 3, the method for testing a membrane electrode includes:
Step 310, nitrogen is introduced into the anode side of the fuel cell corresponding to the membrane electrode, hydrogen is introduced into the cathode side, under the conditions of preset pressure, preset temperature and preset cathode-anode humidity, voltage in a preset voltage range changing at a preset voltage scanning rate is applied between the anode and the cathode of the fuel cell under the condition that the load of the fuel cell is in a voltage mode, and once anode voltage cycle endurance test is ended when the number of voltage scanning turns reaches the preset number of scanning turns, wherein the step 310 is the same as the step 210 in the above embodiment, and details are not repeated.
Step 320, the voltage load of the single fuel cell is reduced to 0, the preset pressure, the preset temperature and the preset cathode and anode humidity are kept unchanged, the hydrogen introduced into the cathode side is switched to nitrogen, and the single fuel cell is purged for a third preset time.
Specifically, in the step of adding nitrogen purge between the anode voltage cycle endurance test and the anti-counter electrode test, because in the step 310, the gas introduced into the anode side is nitrogen and the gas introduced into the cathode side is hydrogen, in the step 320, the gas introduced into the cathode is not changed, and the hydrogen introduced into the cathode is switched to nitrogen, namely, the anode side and the cathode side are purged with nitrogen for a third preset time, so that the voltage load is gradually reduced to 0, the emergency stop of the test bench for testing the membrane electrode is avoided, and the normal running of the test is ensured.
Step 330, hydrogen is introduced into the anode side of the fuel cell corresponding to the membrane electrode, air or oxygen is introduced into the cathode side, the preset pressure, the preset temperature and the preset cathode and anode humidity are kept unchanged, the load of the fuel cell is switched to a current mode, the current density is increased to the preset current density at the preset current density change rate, after the preset current density is kept for a first preset time, the hydrogen introduced into the anode side of the fuel cell is switched to nitrogen, and the second preset time is continued to complete a counter electrode test, wherein the process of step 330 is the same as that of step 220 in the above embodiment, and is not repeated.
Step 340, the current load of the single fuel cell is reduced to 0, the preset pressure, the preset temperature and the preset cathode and anode humidity are kept unchanged, the gas introduced into the cathode side is switched to nitrogen, and the single fuel cell is purged for a fourth preset time.
When the anti-reverse electrode test in step 330 is completed, the gas introduced into the anode side of the single electrode of the fuel cell is nitrogen, the gas introduced into the cathode side is air or oxygen, in step 340, the gas introduced into the anode side is not changed, the gas introduced into the cathode side is switched to nitrogen, and nitrogen purging is performed for a fourth preset time on both the anode side and the cathode side, so that the current load is gradually reduced to 0, the emergency stop of a test bench for testing the membrane electrode is avoided, and the normal performance of the test is ensured.
Step 350, judging whether the test of the membrane electrode reaches the set ending condition.
If yes, go to step 360 to stop testing the membrane electrode.
If not, the step of performing the anode voltage cycle endurance test on the membrane electrode is returned, that is, the step 310 is returned.
Based on the above embodiments, optionally, the preset current densities corresponding to the anti-counter electrode test under different test turns are not exactly the same.
Illustratively, the preset current density is 0.2A/cm 2 for the first test, 0.5A/cm 2 for the second test, and 0.2A/cm 2 for the third test. In other alternative embodiments of the present invention, the preset current density for the anti-counter test at each test turn may be set according to the actual test situation.
Fig. 4 is a flowchart of another method for testing a membrane electrode according to an embodiment of the present invention, and referring to fig. 4, the method for testing a membrane electrode optionally includes:
Step 410, performing a test for a set number of turns on the membrane electrode cycle.
Wherein, the test of the set number of turns does not reach the set ending condition. In the test of setting the number of turns, each turn of test comprises an anode voltage cycle endurance test and an anti-reverse pole test.
Step 420, performing intermediate performance analysis on the membrane electrode.
In particular, the intermediate performance analysis performed on the membrane electrode may include electrochemical analysis, anodic polarization performance analysis, and cathodic polarization performance analysis.
And 430, continuing to test the membrane electrode until the set end condition is reached.
In yet another alternative embodiment of the invention, the final performance analysis of the membrane electrode may be performed after the end of the membrane electrode test.
Fig. 5 is a flowchart of yet another method for testing a membrane electrode according to an embodiment of the present invention, referring to fig. 5, optionally, the method for testing a membrane electrode includes:
step 510, obtaining a first initial current-voltage polarization curve of the anode side and a second initial current-voltage polarization curve of the cathode side of the fuel cell unit corresponding to the membrane electrode.
Step 520, performing a test for a set number of turns on the membrane electrode cycle.
And 530, after the membrane electrode is circularly tested for a set number of turns, acquiring a first middle current voltage polarization curve of the anode side and a second middle current voltage polarization curve of the cathode side of the fuel cell unit cell corresponding to the membrane electrode.
Step 540, performing anodic polarization intermediate performance analysis according to the first initial current-voltage polarization curve and the first intermediate current-voltage polarization curve.
Specifically, the middle polarization performance of the anode can be evaluated according to a first polarization voltage corresponding to a certain first set current Ia in the first initial current-voltage polarization curve and a ratio of the opposite number of the second polarization voltage difference value corresponding to the same first set current Ia in the first middle current-voltage polarization curve to the first polarization voltage.
Step 550, performing cathodic polarization intermediate performance analysis according to the second initial current-voltage polarization curve and the second intermediate current-voltage polarization curve.
Specifically, the intermediate polarization performance of the cathode may be evaluated according to the third polarization voltage corresponding to a certain second set current Ib in the second initial current-voltage polarization curve, and the ratio of the opposite number of the fourth polarization voltage difference values corresponding to the same second set current Ib in the second intermediate current-voltage polarization curve to the third polarization voltage.
And step 560, continuing to test the membrane electrode until the set end condition is reached.
Step 570, obtaining a first final current-voltage polarization curve of the anode side and a second final current-voltage polarization curve of the cathode side of the fuel cell unit cell corresponding to the membrane electrode.
And 580, performing anodic polarization final performance analysis according to the first initial current-voltage polarization curve and the first final current-voltage polarization curve.
Specifically, the final polarization performance of the anode may be evaluated according to a first polarization voltage corresponding to a certain first set current Ia in the first initial current-voltage polarization curve and a ratio of the opposite number of the fifth polarization voltage difference value corresponding to the same first set current Ia in the first final current-voltage polarization curve to the first polarization voltage.
And 590, performing cathode polarization final performance analysis according to the second initial current-voltage polarization curve and the second final current-voltage polarization curve.
Specifically, the final polarization performance of the cathode can be evaluated according to the third polarization voltage corresponding to a certain second set current Ib in the second initial current-voltage polarization curve and the ratio of the opposite number of the corresponding sixth polarization voltage difference value to the third polarization voltage in the same second set current Ib in the second final current-voltage polarization curve.
Fig. 6 is a flowchart of another method for testing a membrane electrode according to an embodiment of the present invention, referring to fig. 6, optionally, the method for testing a membrane electrode includes:
Step 610, obtaining an initial electrochemical active area of an anode and an initial electrochemical active area of a cathode of a single cell of the fuel cell corresponding to the membrane electrode.
Step 620, performing a test for a set number of turns on the membrane electrode cycle.
And 630, after the membrane electrode is circularly tested for a set number of turns, obtaining the middle electrochemical active area of the anode and the middle electrochemical active area of the cathode of the single cell of the fuel cell corresponding to the membrane electrode.
Step 640, performing an intermediate electrochemical analysis based on the anode initial electrochemically active area and the anode intermediate electrochemically active area, and the cathode initial electrochemically active area and the cathode.
Specifically, the intermediate electrochemical active area decay rate of the anode catalyst after a set number of tests on the membrane electrode cycle can be calculated according to the following formula:
Wherein m Intermediate part represents the intermediate electrochemical active area decay rate of the anode catalyst, S initial initiation represents the initial electrochemical active area of the fuel cell anode, S Intermediate part represents the intermediate electrochemical active area of the fuel cell anode, and further the intermediate electrochemical analysis is performed according to the electrochemical active area decay rate.
The manner of calculating the intermediate electrochemical active area decay rate of the cathode catalyst is similar to that of the anode catalyst, and will not be described in detail herein.
And 650, continuing to test the membrane electrode until the set end condition is reached.
Step 660, obtaining the final electrochemical active area of the anode and the final electrochemical active area of the cathode of the single cell of the fuel cell corresponding to the membrane electrode;
Step 670, performing a final electrochemical analysis based on the initial electrochemical active area of the anode and the final electrochemical active area of the anode, and the initial electrochemical active area of the cathode and the final electrochemical active area of the cathode.
Specifically, the electrochemical active area decay rate of the anode catalyst after the membrane electrode cycle is tested until the set end condition is reached can be calculated according to the following formula:
Wherein m Final result represents the final electrochemical active area decay rate of the anode catalyst, S initial initiation represents the initial electrochemical active area of the fuel cell anode, S Final result represents the final electrochemical active area of the fuel cell anode, and further final electrochemical analysis is performed according to the electrochemical active area decay rate.
The manner of calculating the final electrochemical active area decay rate of the cathode catalyst is similar to that of the anode catalyst, and will not be described in detail herein.
The embodiment also provides a membrane electrode testing device, which comprises a testing module, wherein the testing module is used for testing a plurality of turns of the membrane electrode cycle until a set ending condition is reached, and each turn of the testing module comprises an anode voltage cycle endurance test and an anti-reverse pole test.
The testing device of the present embodiment is used for executing the membrane electrode testing method of any embodiment of the present invention, and accordingly, has the beneficial effects of the membrane electrode testing method of any embodiment of the present invention, and will not be described herein.
Note that the above is only a preferred embodiment of the present invention and the technical principle applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, while the invention has been described in connection with the above embodiments, the invention is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the invention, which is set forth in the following claims.

Claims (12)

1.一种膜电极测试方法，其特征在于，包括：1. A method for testing membrane electrodes, characterized in that it comprises: 对所述膜电极循环进行多个圈数的测试直至达到设定结束条件，其中每一圈数的测试包括一次阳极电压循环耐久测试和一次抗反极测试；The membrane electrode is tested for multiple cycles until the set termination condition is reached, wherein each cycle test includes one anode voltage cycle endurance test and one reverse polarity resistance test. 对所述膜电极循环进行多个圈数的测试直至达到设定结束条件，包括：The membrane electrode is cycled multiple times until a set termination condition is met, including: 对所述膜电极进行阳极电压循环耐久测试，具体包括：The membrane electrode is subjected to an anodic voltage cycle durability test, specifically including: 向所述膜电极对应的燃料电池单电池的阳极侧通入氮气，阴极侧通入氢气，在预设压力、预设温度和预设阴阳极湿度的条件下，在所述燃料电池单电池负载为电压模式下，将所述燃料电池单电池的阳极和阴极之间施加以预设电压扫描速率变化的预设电压范围的电压，在电压扫描圈数达到预设扫描圈数时，结束一次所述阳极电压循环耐久测试；Nitrogen gas is introduced into the anode side of the fuel cell corresponding to the membrane electrode, and hydrogen gas is introduced into the cathode side. Under preset pressure, preset temperature and preset anode and cathode humidity conditions, and with the fuel cell load in voltage mode, a voltage of a preset voltage range with a preset voltage scan rate is applied between the anode and cathode of the fuel cell. When the number of voltage scans reaches the preset number of scans, one cycle of the anode voltage endurance test is ended. 对所述膜电极进行抗反极测试，具体包括：The reverse polarity test of the membrane electrode specifically includes: 向所述膜电极对应的燃料电池单电池的阳极侧通入氢气，阴极侧通入空气或氧气，保持所述预设压力、所述预设温度和所述预设阴阳极湿度不变，将所述燃料电池单电池负载切换为电流模式，以预设电流密度变化速率增加电流密度至预设电流密度，在保持所述预设电流密度第一预设时间后，将向燃料电池单电池的阳极侧通入的氢气切换为氮气，持续第二预设时间完成一次所述抗反极测试；Hydrogen gas is introduced into the anode side of the fuel cell corresponding to the membrane electrode assembly, and air or oxygen gas is introduced into the cathode side. The preset pressure, preset temperature and preset anode and cathode humidity are kept constant. The load of the fuel cell is switched to current mode, and the current density is increased to the preset current density at a preset current density change rate. After maintaining the preset current density for a first preset time, the hydrogen gas introduced into the anode side of the fuel cell is switched to nitrogen gas. The reverse polarity test is completed once after a second preset time. 判断对所述膜电极的测试是否达到设定结束条件，若是，结束对所述膜电极的测试；若否，返回对所述膜电极进行阳极电压循环耐久测试的步骤。Determine whether the test on the membrane electrode has met the set termination condition. If yes, end the test on the membrane electrode; otherwise, return to the step of performing an anodic voltage cycle durability test on the membrane electrode. 2.根据权利要求1所述的膜电极测试方法，其特征在于，对所述膜电极进行阳极电压循环耐久测试之后，以及对所述膜电极进行抗反极测试之前，还包括：2. The membrane electrode testing method according to claim 1, characterized in that, after performing an anodic voltage cycle durability test on the membrane electrode and before performing a reverse polarity resistance test on the membrane electrode, it further includes: 将所述燃料电池单电池的电压负载降为0，保持所述预设压力、所述预设温度和所述预设阴阳极湿度不变，将向所述阴极侧通入的氢气切换为氮气，所述阳极侧通入的气体保持不变，对所述燃料电池单电池进行第三预设时间的吹扫。The voltage load of the fuel cell is reduced to 0, while the preset pressure, preset temperature, and preset anode and cathode humidity remain unchanged. The hydrogen gas introduced to the cathode side is switched to nitrogen gas, while the gas introduced to the anode side remains unchanged. The fuel cell is then purged for a third preset time. 3.根据权利要求1所述的膜电极测试方法，其特征在于，对所述膜电极进行抗反极测试之后，以及判断对所述膜电极的测试是否达到设定结束条件之前，还包括：3. The membrane electrode testing method according to claim 1, characterized in that, after performing a reverse polarity test on the membrane electrode and before determining whether the test on the membrane electrode has reached the set termination condition, it further includes: 将所述燃料电池单电池的电流负载降为0，保持所述预设压力、所述预设温度和所述预设阴阳极湿度不变，将向阴极侧通入的气体切换为氮气，所述阳极侧通入的气体保持不变，对所述燃料电池单电池进行第四预设时间的吹扫。The current load of the fuel cell is reduced to 0, while the preset pressure, preset temperature, and preset anode and cathode humidity remain unchanged. The gas introduced to the cathode side is switched to nitrogen, while the gas introduced to the anode side remains unchanged. The fuel cell is then purged for a fourth preset time. 4.根据权利要求1所述的膜电极测试方法，其特征在于，所述预设压力大于或等于大气压力，所述预设温度大于或等于75度，所述预设阴阳极湿度为100%，所述预设电压范围为0.05V-1V。4. The membrane electrode testing method according to claim 1, characterized in that the preset pressure is greater than or equal to atmospheric pressure, the preset temperature is greater than or equal to 75 degrees, the preset anode and cathode humidity is 100%, and the preset voltage range is 0.05V-1V. 5.根据权利要求1所述的膜电极测试方法，其特征在于，不同测试圈数下所述抗反极测试对应的预设电流密度不完全相同。5. The membrane electrode testing method according to claim 1, wherein the preset current density corresponding to the anti-reverse polarity test is not exactly the same for different test cycles. 6.根据权利要求1所述的膜电极测试方法，其特征在于，6. The membrane electrode testing method according to claim 1, characterized in that, 对所述膜电极循环进行多个圈数的测试直至达到设定结束条件，包括：The membrane electrode is cycled multiple times until a set termination condition is met, including: 在对所述膜电极循环进行设定圈数的测试之后，对所述膜电极进行中间性能分析；After the membrane electrode is cyclically tested for a set number of cycles, intermediate performance analysis is performed on the membrane electrode. 继续对所述膜电极进行测试直至达到所述设定结束条件。Continue testing the membrane electrode until the set termination condition is met. 7.根据权利要求6所述的膜电极测试方法，其特征在于，在对所述膜电极循环进行多个圈数的测试之前，还包括：7. The membrane electrode testing method according to claim 6, characterized in that, before performing multiple cycles of testing on the membrane electrode, it further includes: 获取膜电极对应的燃料电池单电池阳极侧的第一初始电流电压极化曲线以及阴极侧的第二初始电流电压极化曲线；Obtain the first initial current-voltage polarization curve on the anode side and the second initial current-voltage polarization curve on the cathode side of the fuel cell corresponding to the membrane electrode. 在对所述膜电极循环进行设定圈数的测试之后，对所述膜电极进行中间性能分析，包括：After cycling the membrane electrode for a set number of times, intermediate performance analysis of the membrane electrode is performed, including: 在对所述膜电极循环进行设定圈数的测试之后，获取膜电极对应的燃料电池单电池阳极侧的第一中间电流电压极化曲线以及阴极侧的第二中间电流电压极化曲线；After testing the membrane electrode for a set number of cycles, the first intermediate current-voltage polarization curve on the anode side and the second intermediate current-voltage polarization curve on the cathode side of the fuel cell corresponding to the membrane electrode are obtained. 根据所述第一初始电流电压极化曲线和所述第一中间电流电压极化曲线进行阳极极化中间性能分析；An anodic polarization intermediate performance analysis was performed based on the first initial current-voltage polarization curve and the first intermediate current-voltage polarization curve. 根据所述第二初始电流电压极化曲线和所述第二中间电流电压极化曲线进行阴极极化中间性能分析。The intermediate performance of cathode polarization was analyzed based on the second initial current-voltage polarization curve and the second intermediate current-voltage polarization curve. 8.根据权利要求7所述的膜电极测试方法，其特征在于，在所述对所述膜电极循环进行多个圈数的测试直至达到设定结束条件之后，还包括：8. The membrane electrode testing method according to claim 7, characterized in that, after the membrane electrode is tested cyclically for a plurality of cycles until a set termination condition is reached, it further includes: 获取膜电极对应的燃料电池单电池阳极侧的第一最终电流电压极化曲线以及阴极侧的第二最终电流电压极化曲线；Obtain the first final current-voltage polarization curve on the anode side and the second final current-voltage polarization curve on the cathode side of the fuel cell corresponding to the membrane electrode. 根据所述第一初始电流电压极化曲线和所述第一最终电流电压极化曲线进行阳极极化最终性能分析；The final performance analysis of anodic polarization is performed based on the first initial current-voltage polarization curve and the first final current-voltage polarization curve. 根据所述第二初始电流电压极化曲线和所述第二最终电流电压极化曲线进行阴极极化最终性能分析。The final performance analysis of cathode polarization is performed based on the second initial current-voltage polarization curve and the second final current-voltage polarization curve. 9.根据权利要求6所述的膜电极测试方法，其特征在于，对所述膜电极循环进行设定圈数的测试之前，还包括：9. The membrane electrode testing method according to claim 6, characterized in that, before cyclically testing the membrane electrode a set number of times, it further includes: 获取膜电极对应的燃料电池单电池阳极初始电化学活性面积和阴极初始电化学活性面积；Obtain the initial electrochemical active area of the anode and the initial electrochemical active area of the cathode of the fuel cell corresponding to the membrane electrode assembly; 在对所述膜电极循环进行设定圈数的测试之后，对所述膜电极进行中间性能分析，还包括：After cycling the membrane electrode for a set number of times, an intermediate performance analysis of the membrane electrode is performed, which also includes: 在对所述膜电极循环进行设定圈数的测试之后，获取膜电极对应的燃料电池单电池阳极中间电化学活性面积和阴极中间电化学活性面积；After testing the membrane electrode for a set number of cycles, the intermediate electrochemical active area of the anode and the intermediate electrochemical active area of the cathode of the fuel cell corresponding to the membrane electrode are obtained. 根据所述阳极初始电化学活性面积和所述阳极中间电化学活性面积，以及所述阴极初始电化学活性面积和所述阴极中间电化学活性面积进行中间电化学分析。Intermediate electrochemical analysis was performed based on the initial electrochemical active area of the anode, the intermediate electrochemical active area of the anode, and the initial electrochemical active area of the cathode and the intermediate electrochemical active area of the cathode. 10.根据权利要求9所述的膜电极测试方法，其特征在于，在所述对所述膜电极循环进行多个圈数的测试直至达到设定结束条件之后，还包括：10. The membrane electrode testing method according to claim 9, characterized in that, after the membrane electrode is tested cyclically for a plurality of cycles until a set termination condition is reached, it further includes: 获取膜电极对应的燃料电池单电池阳极最终电化学活性面积和阴极最终电化学活性面积；Obtain the final electrochemical active area of the anode and the final electrochemical active area of the cathode of the fuel cell corresponding to the membrane electrode assembly; 根据所述阳极初始电化学活性面积和所述阳极最终电化学活性面积，以及所述阴极初始电化学活性面积和所述阴极最终电化学活性面积进行最终电化学分析。Final electrochemical analysis was performed based on the initial and final electrochemical active areas of the anode, as well as the initial and final electrochemical active areas of the cathode. 11.根据权利要求1所述的膜电极测试方法，其特征在于，所述设定结束条件包括对所述膜电极循环进行测试的圈数达到预设循环圈数，或者所述膜电极对应的燃料电池单电池的阳极与阴极之间的压差小于设定电压。11. The membrane electrode testing method according to claim 1, wherein the set termination condition includes the number of cycles of testing the membrane electrode reaching a preset number of cycles, or the voltage difference between the anode and cathode of the fuel cell corresponding to the membrane electrode being less than a set voltage. 12.一种膜电极测试装置，其特征在于，包括：12. A membrane electrode testing device, characterized in that it comprises: 测试模块，用于对所述膜电极循环进行多个圈数的测试直至达到设定结束条件，其中每一圈数的测试包括一次阳极电压循环耐久测试和一次抗反极测试；The testing module is used to perform multiple cycles of testing on the membrane electrode until a set termination condition is reached, wherein each cycle of testing includes an anode voltage cycle endurance test and a reverse polarity resistance test. 对所述膜电极循环进行多个圈数的测试直至达到设定结束条件，包括：The membrane electrode is cycled multiple times until a set termination condition is met, including: 对所述膜电极进行阳极电压循环耐久测试，具体包括：The membrane electrode is subjected to an anodic voltage cycle durability test, specifically including: 向所述膜电极对应的燃料电池单电池的阳极侧通入氮气，阴极侧通入氢气，在预设压力、预设温度和预设阴阳极湿度的条件下，在所述燃料电池单电池负载为电压模式下，将所述燃料电池单电池的阳极和阴极之间施加以预设电压扫描速率变化的预设电压范围的电压，在电压扫描圈数达到预设扫描圈数时，结束一次所述阳极电压循环耐久测试；Nitrogen gas is introduced into the anode side of the fuel cell corresponding to the membrane electrode, and hydrogen gas is introduced into the cathode side. Under preset pressure, preset temperature and preset anode and cathode humidity conditions, and with the fuel cell load in voltage mode, a voltage of a preset voltage range with a preset voltage scan rate is applied between the anode and cathode of the fuel cell. When the number of voltage scans reaches the preset number of scans, one cycle of the anode voltage endurance test is ended. 对所述膜电极进行抗反极测试，具体包括：The reverse polarity test of the membrane electrode specifically includes: 向所述膜电极对应的燃料电池单电池的阳极侧通入氢气，阴极侧通入空气或氧气，保持所述预设压力、所述预设温度和所述预设阴阳极湿度不变，将所述燃料电池单电池负载切换为电流模式，以预设电流密度变化速率增加电流密度至预设电流密度，在保持所述预设电流密度第一预设时间后，将向燃料电池单电池的阳极侧通入的氢气切换为氮气，持续第二预设时间完成一次所述抗反极测试；Hydrogen gas is introduced into the anode side of the fuel cell corresponding to the membrane electrode assembly, and air or oxygen gas is introduced into the cathode side. The preset pressure, preset temperature and preset anode and cathode humidity are kept constant. The load of the fuel cell is switched to current mode, and the current density is increased to the preset current density at a preset current density change rate. After maintaining the preset current density for a first preset time, the hydrogen gas introduced into the anode side of the fuel cell is switched to nitrogen gas. The reverse polarity test is completed once after a second preset time. 判断对所述膜电极的测试是否达到设定结束条件，若是，结束对所述膜电极的测试；若否，返回对所述膜电极进行阳极电压循环耐久测试的步骤。Determine whether the test on the membrane electrode has met the set termination condition. If yes, end the test on the membrane electrode; otherwise, return to the step of performing an anodic voltage cycle durability test on the membrane electrode.
CN202111654056.5A 2021-12-30 2021-12-30 Membrane electrode testing methods and apparatus Active CN116435552B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111654056.5A CN116435552B (en) 2021-12-30 2021-12-30 Membrane electrode testing methods and apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111654056.5A CN116435552B (en) 2021-12-30 2021-12-30 Membrane electrode testing methods and apparatus

Publications (2)

Publication Number Publication Date
CN116435552A CN116435552A (en) 2023-07-14
CN116435552B true CN116435552B (en) 2026-01-30

Family

ID=87080175

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111654056.5A Active CN116435552B (en) 2021-12-30 2021-12-30 Membrane electrode testing methods and apparatus

Country Status (1)

Country Link
CN (1) CN116435552B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111103545A (en) * 2019-12-27 2020-05-05 浙江锋源氢能科技有限公司 A kind of fuel cell membrane electrode performance testing method
CN112820909A (en) * 2020-12-31 2021-05-18 南京大学昆山创新研究院 Anti-reversal testing system and method for membrane electrode of fuel cell

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5858023B2 (en) * 2013-10-25 2016-02-10 トヨタ自動車株式会社 Durability inspection device and durability inspection method for membrane electrode assembly
CN208955114U (en) * 2018-12-17 2019-06-07 南京攀峰赛奥能源科技有限公司 A fuel cell test system
CN113629259B (en) * 2021-08-27 2022-08-19 中国人民解放军国防科技大学 Preparation method of nitrogen-doped graphite carbon aerogel loaded Pt oxygen reduction electrocatalyst

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111103545A (en) * 2019-12-27 2020-05-05 浙江锋源氢能科技有限公司 A kind of fuel cell membrane electrode performance testing method
CN112820909A (en) * 2020-12-31 2021-05-18 南京大学昆山创新研究院 Anti-reversal testing system and method for membrane electrode of fuel cell

Also Published As

Publication number Publication date
CN116435552A (en) 2023-07-14

Similar Documents

Publication Publication Date Title
Yuan et al. A review of polymer electrolyte membrane fuel cell durability test protocols
KR102723130B1 (en) Durability testing method and device for membrane electrode assembly of fuel cell
US7906243B2 (en) Accelerated testing method of rapidly evaluating lifespan of fuel cell
US10020525B2 (en) Method and system for diagnosing state of fuel cell stack
CN113540524A (en) A kind of aging quantification treatment method of proton exchange membrane fuel cell components
KR102694197B1 (en) Durability testing method and device for membrane electrode assembly of fuel cell
Yang et al. Rapid activation of a full-length proton exchange membrane fuel cell stack with a novel intermittent oxygen starvation method
CN115810774A (en) A kind of rapid activation method of proton exchange membrane fuel cell stack
CN115452697A (en) A method for evaluating the corrosion resistance of fuel cell metal bipolar plates
KR20120096615A (en) Catalyst deterioration jundging method for fuel cell
CN116435552B (en) Membrane electrode testing methods and apparatus
CN109638321B (en) Fuel cell output detection method
CN117805640A (en) Quick test method for durability of medium-high temperature proton exchange membrane fuel cell
JP2010186704A (en) Lifetime acceleration testing method of polymer electrolyte fuel cell
JP2015069948A (en) Fuel cell
Lee et al. Experimental study of homogeneity improvement and degradation mitigation in PEMFCs using improved reaction area utilization
KR101724730B1 (en) Activity measurement method for electrode of fuel cell
CN109599579B (en) Output detection method for fuel cell
CN113504470A (en) Fuel cell hydrogen permeation quantity measuring method based on steady-state voltammetry
KR101575429B1 (en) Apparatus and Method for estimating hydrogen permeability in fuel cell
JP2004039490A (en) Fuel cell life test method
CN119518033A (en) Simulation method for carbon carrier lifespan in hydrogen fuel cells
CN115616202B (en) An online testing method for optimal resin content of fuel cell catalyst layer
JP2020113470A (en) Fuel cell aging method
CN120581631A (en) A membrane electrode reverse electrode test method for fuel cell

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant